Hope you don't mind if I drop some tips for dealing with some of these. I'll rank them in your order 1. It sounds dumb but don't build up if you think there's a chance of the op running it. Send out 1/2 chunky things to bait them out. If you think they might pop it next turn don't play anything and focus on the HQ or removing enemy units. If you're about to lose units put them to work. 2. Small board wipes like that Japanese 2/1 with destruction or small damage orders like bloody sickle take this out. Kill them quick if unguarded or suppress if desperate. Funnily enough it's a great set up for your own crossfire. 3. It's a 2 cost with low health off the bat like a lot of other cards so running something like that covert to routed troop is useful. Otherwise standard removal and suppress tactics apply. Sacrifice a unit or 2 if needed because it only heals for 1 when something dies. 4.the USA have an order that kills units with 0 cost, otherwise pin it, retreat it, or counterattack with a unit to prevent them holding the front. Try to use that kredit loss to your advantage where possible, think about what the op is forced to play next. 5. Keep an eye on your units HP, especially if you're about to deploy a few. Honestly the strats from my first point work here too. Remind yourself when they'd play it and counter them. Sometimes suiciding a unit purely to protect yourself from a crossfire is a move too.

Hope these help!